Support for Angular v10

When using the project with Angular 10, I get the following warning:

npm WARN ngx-virtual-scroller@4.0.3 requires a peer of tslib@^1.10.0 but none is installed. You must install peer dependencies yourself.

Angular v10 updates tslib to version 2, hence the warning.

[lincolnthree]

@jneves92 Just copy the code into your project. Seems like this repo is dead.

[seanwu1105]

This would be really helpful especially with NPM v7 or later as it requires compatible peer deps.

npm ERR! code ERESOLVE
npm ERR! ERESOLVE unable to resolve dependency tree
npm ERR! 
npm ERR! While resolving: my-project@1.0.0
npm ERR! Found: tslib@2.1.0
npm ERR! node_modules/tslib
npm ERR!   tslib@"^2.0.0" from the root project
npm ERR!   tslib@"^2.0.0" from @angular/core@11.2.7
npm ERR!   node_modules/@angular/core
npm ERR!     @angular/core@"~11.2.5" from the root project
npm ERR!     peer @angular/core@">=6.0.0" from ngx-virtual-scroller@4.0.3
npm ERR!     node_modules/ngx-virtual-scroller
npm ERR!       ngx-virtual-scroller@"*" from the root project
npm ERR!   1 more (zone.js)
npm ERR! 
npm ERR! Could not resolve dependency:
npm ERR! peer tslib@"^1.10.0" from ngx-virtual-scroller@4.0.3
npm ERR! node_modules/ngx-virtual-scroller
npm ERR!   ngx-virtual-scroller@"*" from the root project
npm ERR! 
npm ERR! Fix the upstream dependency conflict, or retry
npm ERR! this command with --force, or --legacy-peer-deps
npm ERR! to accept an incorrect (and potentially broken) dependency resolution.
npm ERR! 
npm ERR! See /home/user/.npm/eresolve-report.txt for a full report.